AOSSM 2022 Annual Meeting Recordings - no CME-The Natural History of Nonoperative Treatment of Posterior Instability in a High Demand Population

The Natural History of Nonoperative Treatment of Posterior Instability in a High Demand Population

Video Transcription

Video Summary

In this video, the speaker discusses the occurrence of posterior shoulder instability in young athletes and military personnel. The study aimed to determine the failure rate of nonoperative treatment for this condition, evaluate the impact of glenoid and acromial morphology on treatment outcomes, and assess additional injury patterns through serial MRI. The retrospective review included 123 active-duty service members who were treated nonoperatively, with a minimum two-year follow-up. Results showed a 47% failure rate in nonoperative treatment, with risk factors including greater posterior acromial height, posterior humeral head subluxation, and posterior glenoid bone loss. Serial MRI revealed increased posterior glenoid bone loss following nonoperative treatment failure. The study supports previous findings on acromial morphology and calls attention to the importance of glenoid bone loss in treatment outcomes. Dr. Walts will discuss the biomechanical evaluation of posterior shoulder instability in a follow-up presentation.

Asset Caption

Patrick Mescher, MD

Keywords

posterior shoulder instability

nonoperative treatment

failure rate

glenoid and acromial morphology

serial MRI